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Can there be a time-temperature graph as follows? Justify your answer. - Mathematics

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प्रश्न

Can there be a time-temperature graph as follows? Justify your answer.

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उत्तर

This cannot be a time-temperature graph since different temperatures at the same time are not possible. 

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Introduction to Graphs - Exercise 15.1 [पृष्ठ २३९]

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एनसीईआरटी Mathematics [English] Class 8
पाठ 15 Introduction to Graphs
Exercise 15.1 | Q 7.3 | पृष्ठ २३९

संबंधित प्रश्‍न

For an experiment in Botany, two different plants, plant A and plant B were grown under similar laboratory conditions. Their heights were measured at the end of each week for 3 weeks. The results are shown by the following graph.

  1. How high was Plant A after (i) 2 weeks (ii) 3 weeks?
  2. How high was Plant B after (i) 2 weeks (ii) 3 weeks?
  3. How much did Plant A grow during the 3rd week?
  4. How much did Plant B grow from the end of the 2nd week to the end of the 3rd week?
  5. During which week did Plant A grow most?
  6. During which week did Plant B grow least?
  7. Were the two plants of the same height during any week shown here? Specify.

Use the tables below to draw linear graphs.

The number of days a hill side city received snow in different years.

Year 2003 2004 2005 2006
Days 8 10 5 12 

The following table shows the number of patients discharged from a hospital with HIV diagnosis in different years:

Years: 2002 2003 2004 2005 2006
Number of patients: 150 170 195 225 230

Represent this information by a graph.


The following table shows the sales of a commodity during the years 2000 to 2006.

Years: 2000 2001 2002 2003 2004 2005 2006
Sales (in lakhs of Rs): 1.5 1.8 2.4 3.2 5.4 7.8 8.6

Draw a graph of this information.


Find out from the growth chart

  • What could be the length of this plant on the 14th day? Guess.

Find out from the growth chart

  • Will the plant keep growing all the time? What will be its length on the 100th day? Make a guess!

A graph that displays data that changes continuously over periods of time is ______.


Study the given graph and complete the corresponding table below.


Study the given graph and complete the corresponding table below.


The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions:

  1. For how many seconds did the ice block have no change in temperature?
  2. For how long was there a change in temperature?
  3. After how many seconds of heating did the temperature become constant at 0°C?
  4. What was the temperature after 25 seconds?
  5. What will be the temperature after 1.5 minutes? Justify your answer.


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